Apply theme color to navigation bar

app/src/main/java/com/hippo/ehviewer/Settings.java

@@ -252,6 +252,13 @@ public class Settings {
         putIntToStr(KEY_THEME, theme);
     }
 
+    public static final String KEY_APPLY_NAV_BAR_THEME_COLOR = "apply_nav_bar_theme_color";
+    private static final boolean DEFAULT_APPLY_NAV_BAR_THEME_COLOR = false;
+
+    public static boolean getApplyNavBarThemeColor() {
+        return getBoolean(KEY_APPLY_NAV_BAR_THEME_COLOR, DEFAULT_APPLY_NAV_BAR_THEME_COLOR);
+    }
+
     public static final String KEY_GALLERY_SITE = "gallery_site";
     private static final int DEFAULT_GALLERY_SITE = 1;